[thomasross]

How can I get a list of players that are spectating a client object that I have?

[Kailo]

IsClientObserver();
Client entity prop "m_iObserverMode" - Observer Mode
#define SPECMODE_NONE 0
#define SPECMODE_FIRSTPERSON 4
#define SPECMODE_3RDPERSON 5
#define SPECMODE_FREELOOK 6
Client entity prop "m_hObserverTarget" - Spectated Client

i think you know that do next.

[TnTSCS]

There is a plugin that does this where you can get sample code. It works on CSS but not CSGO until keyhinttext is available for CS:GO